Journal of Personality Disorders, 26, 2012, 041 © 2012 The Guilford Press 1 This article was accepted under the editorship of Paul S. Links. From Emergency Department, General Hospital, Montauban, France (L. C.); INSERM, CIC 9302 Tou- louse, CHU Toulouse, Hôpital Purpan, France (L. C.); Clinic Georges Heuyer, Paris, France (M. J.); Centre d’Etudes et de Recherches en Psychopathologie, Université Toulouse-II-le Mirail, France (R. R.); Clinique des Maladies Mentales et de l’Encephale, Hôpital Sainte-Anne, Paris, France (J. D. G., A. P.-S.); UMR 7593 CNRS, Salpêtrière, Paris (F. P.-D.); Institut Mutualiste Montsouris, Paris, France ( M. C.); and Inserm U669, Department of Child Psychiatry, Versailles, France (M. S.) This research was supported by the Wyeth Foundation for Child and Adolescent Health and by the Lilly Foundation. Address correspondence to Lionel Cailhol, Centre d’Investigation Clinique, Pavillon Riser, Centre Hos- pitalier Universitaire Purpan, Place Baylac, TSA 40031, 31059 Toulouse cedex, France; E-mail: cailhol.l@ chu-toulouse.fr. BPD and mental healthcare service Cailhol et al. 041 BRIEF REPORT BORDERLINE PERSONALITY DISORDER AND MENTAL HEALTHCARE SERVICE USE AMONG ADOLESCENTS L. Cailhol, MD, PhD, M. Jeannot, MD, R. Rodgers, PhD, J. D. Guelfi, MD, F. Perez-Diaz, MD, A. Pham-Scottez, MD, M. Corcos, MD, and M. Speranza, MD, PhD Borderline personality disorder (BPD) is believed to be frequent among ado- lescents. While several prospective studies have assessed the use of mental health services among adults who suffer from BPD, few studies have pro- vided adolescent data. This paper presents findings from the first assessment point of the European Research Network on Borderline Personality Dis- order (EURNET BPD) study. In this study, we describe lifetime treatment utilization for 85 adolescents with BPD (Mean age: 16.3 years old). In line with adult findings, adolescents with BPD reported greater mental health- care service use (outpatient: 98%; inpatient: 79%) compared to controls. Phenothiazine, a sedative neuroleptic, was the most frequently prescribed treatment. 47% of patients had received psychotherapy; in one our of three cases this was psychodynamic therapy. Patients who had received psycho- therapy did not differ on any psychopathological variables from those who did not receive psychotherapy; however, psychotherapy was more frequent among females. Borderline personality disorder (BPD) is characterized by a pervasive pattern of instability in interpersonal relationships, self-image and emotions. Ac- cording to DSM-IV, BPD diagnosis can be applied to adolescents. Prevalence